libmysofa 0.9.1 has a stack-based buffer overflow in readDataVar in hdf/dataobject.c during the reading of a header message attribute.

published 2020-01-13 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-28002

cvss: 8.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.7%; EPSS 1.7% chance of exploitation in 30 days, percentile 77%
public exploits: 0; none known

Patch / fix

distros 2

debian opensuse

libmysofa Debian 14, Debian 13, Debian 12 1.0~dfsg0-1

debian advisories DEBIAN-CVE-2020-6860

libmysofa Package Hub 15 SP2 0.9.1-bp152.4.3.1
libmysofa openSUSE Leap 15.2 0.9.1-lp152.3.3.1

opensuse advisories openSUSE-SU-2021:0459-1 openSUSE-SU-2021:0444-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-6860 updated 2025-11-21 cvss 8.8

libmysofa: stack-based buffer overflow in readDataVar in hdf/dataobject.c

Red Hat All currently supported Red Hat products
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.68% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/hoene/libmysofa/issues/96 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness

CWE-787 Out-of-bounds Write

References

github.com /hoene/libmysofa/issues/96
exploit, third-party-advisory
lists.fedoraproject.org /archives/list/package-announce%40lists.fedoraproject.org/message/WGY7TAZX2M4NYXXGNHIBBKKN5XMSMKQ4/
vendor-advisory
lists.fedoraproject.org /archives/list/package-announce%40lists.fedoraproject.org/message/PGQ45S4RH7MC42NHTAGOIHYR4C5IRTMZ/
vendor-advisory

Sources

CVE List CVE-2020-6860
NVD CVE-2020-6860

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary